Multiplication principle - math word problems
- Graduation party
There are 15 boys and 12 girls at the graduation party. Determine how many four couples can be selected.
A number cube is rolled and a coin is tossed. The number cube and the coin are fair. What is the probability that the number rolled is greater than 2 and the coin toss is head?
- No. of divisors
How many different divisors has number ??
- 7 heroes
9 heroes galloping on 9 horses behind. How many ways can sort them behind?
How many different flags can be made from colors white, red, green, purple, orange, yellow, blue so that each flag consisted of three different colors?
In how many ways can 9 shuttle vans line up at the airport?
How many ways can 5 people sit on 4 numbered chairs (e. G. , seat reservation on the train)?
How many ways can 5 guests sit down on 6 seats standing in a row?
What is the probability that a random word composed of chars E, Y, G, E, R, O, M, T will be the GEOMETRY?
- 2nd class variations
From how many elements you can create 2450 variations of the second class?
How many ways are there to arrange 6 books on a shelf?
3 trees in 3 lines grows in the orchard. How many trees are in the orchard?
- Phone numbers
How many 7-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated?
How many rectangles with area 3032 cm2 whose sides is natural numbers are?
- Football league
In the 5th football league is 10 teams. How many ways can be filled first, second and third place?
How many ways can divide 10 identical candies to 5 children?
- Playing cards
How many possible ways are to shuffle 7 playing cards?
At the table sit 8 people, 4 on one side and 4 on the other side. Among them are 3 pairs. Every pair wants to sit opposite each other. How many ways can they sit?
- Morse alphabet
Calculate how many words of Morse code to create compiling commas and dots in the words of one to four characters.
Annie has a total of $ 702. The money must be divided into stacks so that each buyer has the same amounth of dollars. How many options she have?